CN209761939U

CN209761939U - section bar connecting structure

Info

Publication number: CN209761939U
Application number: CN201920444422.6U
Authority: CN
Inventors: 戚姚捷
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-04-03
Filing date: 2019-04-03
Publication date: 2019-12-10
Anticipated expiration: 2029-04-03

Abstract

The utility model discloses a profile connecting structure, which adopts the technical proposal that a first profile and a second profile which are fixedly connected through a connecting piece are adopted; the middle part of the first section bar is provided with a first through hole; the side surface of the first section is uniformly provided with a first groove and a second through hole in the circumferential direction; two sides of the first groove are inwards and downwards folded with folded edges with inverted U-shaped sections; the middle part of the second section bar is provided with a containing through hole; a plurality of second grooves and third grooves are formed in the outer side of the second profile, and a first threaded hole is formed between every two adjacent third grooves; the connecting piece is matched with the accommodating through hole; a second threaded hole corresponding to the first threaded hole is formed in the connecting piece; the front end of the connecting piece is provided with a connecting block matched with the first groove; be provided with the screw thread through-hole at both ends around the through connection spare on the connecting block, the utility model discloses firm in connection has, installs simple effect.

Description

Section bar connecting structure

Technical Field

The utility model relates to a metal section structure, more specifically say that it relates to a section bar connection structure.

Background

The section bar is an object with a certain geometric shape, which is made of iron, aluminum or steel and materials with certain strength and toughness through the processes of rolling, extruding, casting and the like. The material has certain appearance size, certain shape of cross section and certain mechanical and physical properties. The section bar can be used independently and can be further processed into other manufactured products, and is commonly used for building structures and manufacturing and installation. The mechanical engineer can select parameters such as specific shape, material quality, heat treatment state, mechanical property and the like of the section bar according to design requirements, then the section bar is divided according to specific size and shape requirements, and then the section bar is further processed or heat treated to meet the design precision requirements. The common classification methods of the section mainly comprise the following 5 types: the section can be divided into hot rolled section, cold bending section, cold rolled section, cold drawing section, extrusion section, forging section, hot bending section, welding section, special rolling section and the like according to the production method; the sectional material can be divided into simple section sectional material and complex section sectional material according to the cross section shape, the simple section sectional material has symmetrical cross section and relatively uniform and simple appearance, such as round steel, wire rods, square steel, flat poles and the like, the complex section sectional material is also called special section sectional material, and the sectional material is characterized in that the cross section has obvious convex-concave branches. Therefore, the composite material can be further divided into flange profiles, multi-step profiles, wide and thin profiles, local special processing profiles, irregular curve profiles, composite profiles, periodic section profiles, metal wire materials and the like; the sectional materials are classified into a section material for railways (a steel rail, a fishplate, a rail for a turnout, a wheel band), a section material for automobiles (a wheel rim, a tire retainer ring and a lock ring), a section material for shipbuilding (L-shaped steel, flat-bulb steel, Z-shaped steel, window frame steel for ships), a section material for structures and buildings (H-shaped steel, I-shaped steel, channel steel, angle steel, crane steel rails, a material for window frames and door frames, steel sheet piles and the like), a steel for mines (U-shaped steel, ledge steel, I-shaped steel for mines, scraper steel and the like), a special section material for machine manufacturing and the like; the profiles can be divided into large, medium and small profiles according to their cross-sectional dimensions, the division often being classified in such a way that they are suitable for rolling on large, medium and small rolling mills, respectively. The distinction large, medium and small is not really strict. In addition, the method is also classified by a single weight (kg/m). Generally, the single weight of the material is less than 5kg/m, the single weight of the material is 5-20 kg/m, the material is medium section, and the single weight of the material exceeds 20kg/m, the material is large section.

The existing section bar has the following defects: when the connecting and fixing between the sectional materials are needed, the sectional materials are directly connected through screws, and the connecting mode is easily loosened and deformed under the influence of external twisting force.

SUMMERY OF THE UTILITY MODEL

Not enough to prior art exists, the utility model provides a section bar connection structure has firm in connection, simple to operate's effect.

In order to achieve the above purpose, the utility model provides a following technical scheme: a profile connecting structure comprises a first profile and a second profile which are fixedly connected through a connecting piece; the method is characterized in that: the middle part of the first section bar is provided with a first through hole; the side surface of the first section is uniformly provided with a first groove and a second through hole in the circumferential direction; two sides of the first groove are inwards and downwards folded with folded edges with inverted U-shaped sections; the middle part of the second section bar is provided with a containing through hole; a plurality of second grooves and third grooves are formed in the outer side of the second profile, and a first threaded hole is formed between every two adjacent third grooves; the connecting piece is matched with the accommodating through hole; a second threaded hole corresponding to the first threaded hole is formed in the connecting piece; the front end of the connecting piece is provided with a connecting block matched with the first groove; and the connecting block is provided with threaded through holes penetrating through the front end and the rear end of the connecting piece.

The utility model discloses further set up to: one end of the connecting piece is provided with a weight reduction groove; the connecting block is arranged in the weight reduction groove; limiting blocks are arranged on two sides of the connecting piece; the second threaded hole is formed in the limiting block.

The utility model discloses further set up to: the two sides of the second groove and the third groove are provided with turning edges

The utility model discloses further set up to: first insertion strips with I-shaped sections are arranged in the first groove and the second groove; the bottom of the first insertion strip abuts against the bottoms of the first groove and the second groove; and two sides of the upper end of the first embedded bar are downwards and outwards bent to form a buckling part with an L-shaped section.

The utility model discloses further set up to: a second insertion strip with an inverted U-shaped section is arranged in the third groove; the lower end of the second insertion strip abuts against the bottom of the third groove; and limiting strips are outwards arranged on two sides of the second embedded strip.

The utility model discloses following beneficial effect has: connect first section bar and second section bar through the connecting piece to and the structure setting of connecting piece, after the three interconnect, under the effect of outside twisting power, this kind of connection structure has better anti-twisting power, and the setting of fillet, then can play pleasing to the eye, prevents the effect of deposition.

Drawings

FIG. 1 is a schematic structural diagram of the present embodiment;

FIG. 2 is a schematic view of the structure of the connector of the present embodiment;

FIG. 3 is a schematic view of the connector of the present embodiment mated with a first profile;

FIG. 4 is a schematic view of the connection member of the present embodiment being engaged with a second profile;

FIG. 5 is a schematic structural view of the second profile of the present embodiment with a fillet mounted thereon;

Fig. 6 is a schematic structural view of the first profile of the present embodiment with a fillet attached thereto.

Reference numerals: 1. a connecting member; 2. a first profile; 3. a second profile; 4. a first through hole; 5. a first groove; 6. a second through hole; 7. folding edges; 8. placing the accommodating through hole; 9. a second groove; 10. a third groove; 11. a first threaded hole; 12. a weight reduction groove; 13. a limiting block; 14. a second threaded hole; 15. connecting blocks; 16. a threaded through hole; 17. a first fillet; 18. a second fillet; 19. a fastening part; 20. and (5) a limiting strip.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

the embodiment discloses a profile connecting structure, as shown in fig. 1 to 6, comprising a first profile 2 and a second profile 3 which are connected and fixed through a connecting piece 1; the first section bar 2 is in a cubic column structure, four edges of the cubic column are rounded, and a first through hole 4 is formed in the middle of the first section bar 2; four side surfaces of the first section bar 2 are provided with first grooves 5; a second through hole 6 is arranged on the first section bar 2 between two adjacent first grooves 5; four second through holes 6 are arranged, and the four second through holes 6 are uniformly distributed around the first through holes 4 in the circumferential direction; and folding edges 7 with inverted U-shaped sections are inwards and downwards folded at two sides of the first groove 5.

as shown in fig. 5, the second section bar 3 has a rectangular column structure, the middle of the second section bar 3 is provided with a holding through hole 8, and the outer side of the second section bar 3 is provided with a second groove 9 and a third groove 10; the second groove 9 is positioned on the side surface where the narrow side of the rectangular column structure is positioned, and the two side surfaces are symmetrically arranged; the third groove 10 is positioned on the side where the wide side of the rectangular column structure is positioned, and the two sides are also symmetrically arranged; the third groove 10 is provided with two parallel grooves on the side surface; a plurality of first threaded holes 11 are formed in the surface of the second section bar 3 between the two third grooves 10 and are communicated with the outside and the accommodating through holes 8; two sides of the second groove 9 and the third groove 10 are also provided with turned edges 7 which are turned inwards and downwards and have inverted U-shaped sections.

As shown in fig. 2, the connecting piece 1 is configured as a square block-shaped structure; a weight-reducing groove 12 for reducing weight is arranged at one end of the connecting piece 1; the two sides of the block-shaped structure are provided with limiting blocks 13; a second threaded hole 14 corresponding to the first threaded hole 11 is formed in the side face of one of the limiting blocks 13, and a connecting block 15 is further arranged on the connecting piece 1; the connecting block 15 extends towards the opening direction of the lightening groove 12, and the connecting block 15 is inserted into the first groove 5 of the first section bar 2; the connecting block 15 is also provided with a plurality of threaded through holes 16; threaded through holes 16 extend through both ends of the connector 1.

In the actual use process, the connecting block 15 part of the connecting piece 1 is inserted into the first groove 5 of the first section bar 2, and then a screw is inserted from the threaded through hole 16 at the rear end of the connecting piece 1; the front end of the screw is nailed through the side wall of the first through hole 4 of the first section bar 2; fixedly connecting the connecting piece 1 to the first section bar 2; then, the direction of the surface of the second section bar 3 where the first threaded hole 11 is located is adjusted to be consistent with the direction of the surface of the connecting piece 1 where the second threaded hole 14 is located, and then the connecting piece 1 is matched with the accommodating through hole 8 in the second section bar 3; finally, the first threaded hole 11 and the second threaded hole 14 are connected through screws; thereby realizing the fixed connection of the three; the connecting element 1 can also be mounted in the other first grooves 5 of the first profile 2; in order to ensure that the front end of the screw is not interfered by the screw of the connecting piece 1 in the adjacent first groove 5 after being screwed through the side wall of the first through hole 4, the number of the threaded through holes 16 is four in the embodiment, and the screw can be installed by artificial dislocation when the screw is installed.

as shown in fig. 5 to 6, in the present embodiment, after the first profile 2 and the second profile 3 are connected and fixed by the connecting member 1, the fillets are arranged in the first groove 5, the second groove 9 and the third groove 10; the molding is divided into a first molding 17 and a second molding 18; the first insertion strip 17 is arranged into an I-shaped structure; the lower end of the first embedded strip 17 is abutted against the bottoms of the first groove 5 and the second groove 9; two sides of the upper end of the first embedded bar 17 are downwards bent to form a buckling part 19 with an L-shaped section; the bottom of the buckling part 19 is elastically abutted against the flanging 7; the upper end surface of the first embedded bar 17 is horizontally consistent with the side surfaces of the first section bar 2 and the second section bar 3.

a second fillet 18 is arranged in the third groove 10; the second embedded bar 18 is arranged in an inverted U shape, and the lower end of the second embedded bar 18 is abutted against the bottom of the third groove 10; limiting strips 20 are arranged outwards on two sides of the second embedded strip 18; the upper side of the limiting strip 20 is abutted against the bottom of the flanging edge 7; the side wall of the second insertion strip 18 is abutted against the side wall of the flanging 7.

The first and second molding 17, 18 can decorate the appearance of the first and second profiles 2, 3 and prevent dust deposition.

The connecting structure of the section bar of the utility model can be applied to various occasions, the first through hole 4, the second through hole 6 and the accommodating through hole 8 can effectively reduce the weight of the section bar, and the structural arrangement of the first groove 5, the second groove 9 and the third groove 10 can effectively improve the structural strength of the section bar; and the matching of the connecting piece 1 with the first section bar 2 and the second section bar 3 has simple structure installation and firm connection.

The above description is only the preferred embodiment of the present invention, and is not intended to limit the present invention, any modification, equivalent replacement, or improvement made within the design concept of the present invention should be included within the protection scope of the present invention.

Claims

1. A profile connecting structure comprises a first profile (2) and a second profile (3) which are fixedly connected through a connecting piece (1); the method is characterized in that: a first through hole (4) is formed in the middle of the first section bar (2); the side surface of the first section bar (2) is uniformly provided with a first groove (5) and a second through hole (6) in the circumferential direction; two sides of the first groove (5) are inwards and downwards folded with folded edges (7) with inverted U-shaped sections; the middle part of the second section bar (3) is provided with a containing through hole (8); a plurality of second grooves (9) and third grooves (10) are formed in the outer side of the second section bar (3), and a first threaded hole (11) is formed between every two adjacent third grooves (10); the connecting piece (1) is matched with the accommodating through hole (8); a second threaded hole (14) corresponding to the first threaded hole (11) is formed in the connecting piece (1); the front end of the connecting piece (1) is provided with a connecting block (15) matched with the first groove (5); and the connecting block (15) is provided with a threaded through hole (16) which penetrates through the front end and the rear end of the connecting piece (1).

2. The profile connecting structure according to claim 1, wherein: one end of the connecting piece (1) is provided with a weight reduction groove (12); the connecting block (15) is arranged in the weight-reducing groove (12); limiting blocks (13) are arranged on two sides of the connecting piece (1); the second threaded hole (14) is formed in the limiting block (13).

3. The profile connecting structure according to claim 1, wherein: and folding edges (7) are also arranged on two sides of the second groove (9) and the third groove (10).

4. The profile connecting structure according to claim 1, wherein: a first fillet (17) with an I-shaped section is arranged in the first groove (5) and the second groove (9); the bottom of the first insertion strip (17) is abutted against the bottoms of the first groove (5) and the second groove (9); and two sides of the upper end of the first insertion strip (17) are bent outwards downwards to form a buckling part (19) which is L-shaped in section and matched with the flanging (7).

5. The profile connecting structure according to claim 1, wherein: a second embedded strip (18) with the section of an inverted U-shaped is arranged in the third groove (10); the lower end of the second insertion strip (18) is propped against the bottom of the third groove (10); and limiting strips (20) are outwards arranged on two sides of the second embedded strip (18).